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使用绿色两性糖来定制高性能聚异胺超膜

Liang-Liang Li¹, Xue-Qi Wang¹, Ying-Nan Feng¹

¹School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.

ACS applied materials & interfaces

|August 26, 2025

概括

环保糖增强了聚乙烯异胺 (PMIA) 的超膜. 这种新的方法提高了水处理应用的膜性能,提供了可持续的替代方案.

科学领域:

材料科学与工程
聚合物化学
环境工程

背景情况:

开发高性能超膜对于净水至关重要.
传统的聚合物膜通常依赖于石化添加剂,这引发了环境问题.
聚乙烯异胺 (PMIA) 是膜制造的一个有前途的材料.

研究的目的:

开发使用糖 (SE-15) 作为环保添加剂的高性能PMIA超膜.
研究SE-15对膜微观结构,表面特性和永久选择性的影响.
探索SE-15作为膜工程中石化添加剂的可持续替代品的潜力.

主要方法:

非溶剂诱导相分离 (NIPS) 和表面分离技术的协同整合.
使用糖 (SE-15) 作为PMIA造溶液中的添加剂.
采用了包括纳米尺度X射线显微镜 (纳米CT) 和分子动力学模拟在内的综合性表征.

主要成果:

SE-15显著增强了膜的多孔性,水友性和毛孔大小.
优化SE-15度 (0.2%) 导致纯水流量增加32%.
保持高的牛血清白蛋白 (BSA) 排斥率 (>95%) 与改善的流量.

结论:

通过协同作用提高PMIA膜的性能.
SE-15为先进的膜制造提供了传统添加剂的有希望的,无毒的替代品.
开发的SE-15/PMIA膜显示出各种水处理应用的巨大潜力,包括饮用水净化和废水回收.

关键词:

聚乙烯异胺)绿色两性添加剂纳米CT 孔隙结构糖表面分离

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